期刊文献+
共找到2,591篇文章
< 1 2 130 >
每页显示 20 50 100
Comparative Analysis of China Surface Air Temperature Series for the Past 100 Years 被引量:1
1
作者 Guoli Tang Yihui Ding +3 位作者 Shaowu Wang Guoyu Ren Hongbin Liu Li Zhang 《Advances in Climate Change Research》 SCIE 2010年第1期11-19,共9页
Temperature change plays a crucial role in global change sciences. In the past several decades, comprehensive find- ings have been achieved on temperature change in China for the past 100 years. Several time series ha... Temperature change plays a crucial role in global change sciences. In the past several decades, comprehensive find- ings have been achieved on temperature change in China for the past 100 years. Several time series have been created to illustrate the averaged surface air temperature for the country. The correlations of these series range from 0.73 to 0.97. It is also achieved in better data quality, wider spatial data coverage, improved homogeneity of time series, and enhanced reliability of findings. The results show an annual mean temperature increase by 0.78±0.27℃ per 100 years in China for the period 1906-2005. After prolonging the period till 2007, it is found that 2007 is rated as the warmest year in the past 100 years. Although all the series, except one, reflect temperature changes in the eastern part of China before the 1930s, they represent the general temperature change in most parts of the country after the 1930s. 展开更多
关键词 past 100 years air temperature series warming rate estimate global warming
下载PDF
Development of China's Human Rights Cause in the Past 13 Years
2
作者 CHINA SOCIETY FOR HUMAN RIGHTS STUDIES & CHINA HUMAN RIGHTS WEBSITE 《The Journal of Human Rights》 2003年第2期11-27,共17页
The most recent 13 years constitute a period of paramount importance in the history of human rights development in China. These years have seen the Chinese government persistently take economic construction as the cor... The most recent 13 years constitute a period of paramount importance in the history of human rights development in China. These years have seen the Chinese government persistently take economic construction as the core of all work and spare no effort to strengthen the building of democracy and the legal system and promote the development of spiritual civilization. This has brought about an all-round progress of the reform and development undertakings, ensured stability of the country, and brought about a sharp increase in the national strength. A historic change has taken place in living standards, and the Chinese people have come to enjoy a better life after they succeeded in producing enough to feed and clothe themselves. To sum up, Chi- 展开更多
关键词 in on as is development of China’s Human Rights Cause in the past 13 years of
下载PDF
20 years'development of super rice in China--The 20th anniversary of the super rice in China 被引量:14
3
作者 CHEN Wen-fu XU Zheng-jin TANG Liang 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2017年第5期981-983,共3页
Rice (Oryza sativa L.) is originated from Asia and more than 90% of rice is produced inAsia. As the most important cereal crop in the world, rice is the staple food for over 1/3 global population, while this proport... Rice (Oryza sativa L.) is originated from Asia and more than 90% of rice is produced inAsia. As the most important cereal crop in the world, rice is the staple food for over 1/3 global population, while this proportion is over 60% in Asia (Wan 2010). In order to maintain the most important role that rice has played in Asian agriculture and ensure food security in the world, especially in Asia, 展开更多
关键词 In development of super rice in China years the 20th anniversary of the super rice in China
下载PDF
The sub-fossils of leaf fragments in sediments as an indicator of mangrove development in the Yingluo Bay, Guangxi, Southwest China over the last 130 years 被引量:1
4
作者 Wanzhu Wang Xianwei Meng +1 位作者 Xiangqin Wang Zhen Li 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2019年第8期27-34,共8页
Located in the intertidal zone of the tropical and subtropical coasts, mangrove forests are an important ecosystem in the global carbon cycle and serve as a protector of local seashores. Under the double impacts of cl... Located in the intertidal zone of the tropical and subtropical coasts, mangrove forests are an important ecosystem in the global carbon cycle and serve as a protector of local seashores. Under the double impacts of climate change,especially sea-level rise, and human activity, mangrove forests around the world have faced degradation, against which the reconstruction of the historical development of mangrove forests using an effective indicator has been regarded as a necessary strategy for designing a predictable model. As the primary product of mangrove forest, it is reasonable that the content of leaf fragments of mangrove(CLFM) buried in sediments in the form of sub-fossils potentially has the same indicative function for the development of mangrove forests as that of widely-used mangrove pollen. In this study, the leaf fragments of mangrove in two sediment cores(YLW02 and YLW03) drilled in the Yingluo Bay in Guangxi, Southwest China were picked out and weighted for calculation of CLFM, which was used as an indicator of mangrove development after examination of parallelism and a statistical correlation of the CLFM with the concentration of mangrove pollen. The results clearly show that the vertical distribution of the CLFM for the core taken from the landward margin of mangrove forests(YLW03) only parallels that of the local mangrove species(Rhizophora. stylosa) with a significantly positive correlation(R=0.56, P=0.05), while the vertical distribution of the CLFM for the core taken from the interface between seaward margin of mangrove forest and the trunk of tidal creeks of the bay(YLW02) parallels the summed concentration of mangrove pollen(SCMP) with a more positive correlation than that of YLW03(R=0.85, P=0.01), indicating that the trunk outlet of tidal creeks must have been the site where mangrove production gathered from the overall forest rather than from local production. The variations in the CLFM of both cores indicate that overall the mangrove forests in the Yingluo Bay have increasingly flourished over the last 130 years except for the interval of 1940–1950 AD in response to an increase in air temperature and decrease in rainfall, which would have resulted in an increase in seawater salinity;while the coupled extreme increases in air temperature and in rainfall in summer, which would have resulted in extreme decreases in seawater salinity, would be responsible for the relative degradation of mangrove forests in the interval of 1940–1950 AD. 展开更多
关键词 LEAF fragment MANGROVE development Yingluo BAY LAST 130 years air temperature and rainfall
下载PDF
Chinese Experience in Industrial Development During the Forty Years of reform and opening-up
5
作者 Liu Yanhong Guo Chaoxian +1 位作者 Cui Min Wu Lingwei 《Contemporary Social Sciences》 2018年第5期19-38,共20页
Over the past forty years of reform and opening-up,China's industry has sustained rapid and sound development and generated impressive achievements.Industrialization has entered the second half of its final stage.... Over the past forty years of reform and opening-up,China's industry has sustained rapid and sound development and generated impressive achievements.Industrialization has entered the second half of its final stage.This experience of successful industrialization with Chinese characteristics constitutes an important component Chinese wisdom and Chinese approaches,and serves as a reference for other developing countries and countries in transition.The Chinese experience in industrial development during this period includes: progressively promoting industrial and economic system reform adapted to local circumstances; seizing the right moment to firmly integrate into the global system of labor division; pursuing the new path of industrialization featuring coordinated development of the "Five Pillars" in keeping up with the times; and developing an industrialization model with Chinese characteristics with concerted efforts of effective market and enabling government. 展开更多
关键词 forty years of reform and opening up industrial development Chinese experience new industrialization
下载PDF
Power Grid Development in 60 Years since the Foundation of P.R.C.
6
作者 Sun Ke,Han Feng State Power Economic Research Institute 《Electricity》 2009年第3期17-22,共6页
Foreword Since the foundation of P.R.C.,the China's power grid develops with a high rate.By now,grids in all provinces except Xinjiang,Tibet,Hainan and Taiwan are AC/DC interconnected together,forming the structur... Foreword Since the foundation of P.R.C.,the China's power grid develops with a high rate.By now,grids in all provinces except Xinjiang,Tibet,Hainan and Taiwan are AC/DC interconnected together,forming the structure of power grid interconnection in the whole country. 展开更多
关键词 Power Grid development in 60 years since the Foundation of P.R.C UHVDC
下载PDF
Work for S&T Development In the Next Five Years Deployed
7
《Bulletin of the Chinese Academy of Sciences》 2000年第4期198-198,共1页
Important tasks involving four major topics will be allocated priority in China’s science and technology (S&T) development during the 10th Five-Year Plan Period (2001-2005), according to Zhu Lilan, minister of Sc... Important tasks involving four major topics will be allocated priority in China’s science and technology (S&T) development during the 10th Five-Year Plan Period (2001-2005), according to Zhu Lilan, minister of Science and Technology. These include: strengthening technological innovation to provide strong momentum 展开更多
关键词 Work for S&T development In the Next Five years Deployed In
下载PDF
Three Development Stages for the Tibetan Family and Tibet's Modernization——A Survey of Social Changes in Tibet in Last 50 Years
8
作者 GELEK 《The Journal of Human Rights》 2010年第2期32-37,共6页
I Since 1990, as a person in charge of key research projects of the China Tibetology Research Center, I have had opportunities almost every year to conduct field surveys on anthropology in Tibet together with my colle... I Since 1990, as a person in charge of key research projects of the China Tibetology Research Center, I have had opportunities almost every year to conduct field surveys on anthropology in Tibet together with my colleagues. Our investigations focus on the family. The purpose of our surveys is to see social changes in Tibet during the 50 years after the Democratic Reform through the study of the family as a social cell. 展开更多
关键词 Three development Stages for the Tibetan Family and Tibet’s Modernization than more time over A Survey of Social Changes in Tibet in Last 50 years
下载PDF
A Reflection on China Development of Human Rights in the Last 30 Years
9
作者 FAN JIZENG & MU XIAOJUN 《The Journal of Human Rights》 2010年第4期24-29,共6页
The 30 years since kaige kaifang, or the implementation of reform and openingup policies, are a period when human rights in China have had the fastest development. Human rights development in these years has followed ... The 30 years since kaige kaifang, or the implementation of reform and openingup policies, are a period when human rights in China have had the fastest development. Human rights development in these years has followed this thread: economic development -emancipation of the mind-social opening-international cooperation. 展开更多
关键词 A Reflection on China development of Human Rights in the Last 30 years
下载PDF
S100B protein in tissue development,repair and regeneration 被引量:14
10
作者 Guglielmo Sorci Francesca Riuzzi +4 位作者 Cataldo Arcuri Claudia Tubaro Roberta Bianchi Ileana Giambanco Rosario Donato 《World Journal of Biological Chemistry》 CAS 2013年第1期1-12,共12页
The Ca 2+-binding protein of the EF-hand type,S100B,exerts both intracellular and extracellular regulatory activities.As an intracellular regulator,S100B is involved in the regulation of energy metabolism,transcriptio... The Ca 2+-binding protein of the EF-hand type,S100B,exerts both intracellular and extracellular regulatory activities.As an intracellular regulator,S100B is involved in the regulation of energy metabolism,transcription,protein phosphorylation,cell proliferation,survival,differentiation and motility,and Ca 2+ homeostasis,by interacting with a wide array of proteins(i.e.,enzymes,enzyme substrates,cytoskeletal subunits,scaffold/adaptor proteins,transcription factors,ubiquitin E3 ligases,ion channels) in a restricted number of cell types.As an extracellular signal,S100B engages the pattern recognition receptor,receptor for advanced glycation end-products(RAGE),on immune cells as well as on neuronal,astrocytic and microglial cells,vascular smooth muscle cells,skeletal myoblasts and cardiomyocytes.However,RAGE may not be the sole receptor activated by S100B,the protein being able to enhance bFGF-FGFR1 signaling by interacting with FGFR1-bound bFGF in particular cell types.Moreover,extracellular effects of S100B vary depending on its local concentration.Increasing evidence suggests that at the concentration found in extracellular fluids in normal physiological conditions and locally upon acute tissue injury,which is up to a few nM levels,S100B exerts trophic effects in the central and peripheral nervous system and in skeletal muscle tissue thus participating in tissue homeostasis.The present commentary summarizes results implicating intracellular and extracellular S100B in tissue development,repair and regeneration. 展开更多
关键词 S100B CELL proliferation CELL differentiation CELL survival CELL MOTILITY development TISSUE homeostasis TISSUE REPAIR TISSUE REGENERATION
下载PDF
A Nine Years' Summing-up Report of TEDA's Development (1986 - 1994 ) 被引量:1
11
作者 Tian Gui-ming Wan Qian Spokesman, Director of the Commission Office of TEDA. Visiting Professor of Tianjin Institute of Commerce Deputy Chief of Secretary Section of the Commission Office of TEDA 《南开经济研究》 CSSCI 北大核心 1994年第S3期40-45,共6页
Since 1986. a brand-new modern industrial city, full of vigor and vitality, has been towering aloftrapidly in what used to be salt marsh in the western part of Bohai Bay of China. With an annual out-put value of RMB ?... Since 1986. a brand-new modern industrial city, full of vigor and vitality, has been towering aloftrapidly in what used to be salt marsh in the western part of Bohai Bay of China. With an annual out-put value of RMB ? 14 billion. it has become one of the most lively and energetic areas of Tianjin andeven throughout the country for opening to the outside world and for developing exportoriented econo- 展开更多
关键词 TEDA A Nine years Summing-up Report of TEDA’s development
下载PDF
Kunqu Opera in the Last Hundred Years in China 被引量:1
12
作者 Yue Wang 《Review of Educational Theory》 2019年第4期59-65,共7页
Kunqu,literally means kun melody,is one of the most ancient forms of Chinese opera.Originally her melody derives from Kunshan zone of Jiangsu province therefore it has been named Kunshan melody before,now Kunqu also k... Kunqu,literally means kun melody,is one of the most ancient forms of Chinese opera.Originally her melody derives from Kunshan zone of Jiangsu province therefore it has been named Kunshan melody before,now Kunqu also known as Kunju,which means Kunqu opera.This paper mainly focuses on the development of Kunqu in the past 100 years and the influence of historical social and humanistic changes behind the special era on Kunqu,and compares the attitudes of scholars of different schools of thought in different eras to Kunqu and the social public to compare and analyze the degree of love of Kunqu. 展开更多
关键词 Kunqu LAST hundred years development INFLUENCE
下载PDF
An investigation and analysis of the export earnings of 100 foreign trade enterprises in the first five months of this year 被引量:1
13
作者 our staff reporter 《中国经贸画报》 1998年第9期95-95,共1页
In order to understand the export situation faced by Chinese foreign trade enterprises and learn about their difficulties and problems in this regard, the China Association of Foreign Trade and Economic Cooperation En... In order to understand the export situation faced by Chinese foreign trade enterprises and learn about their difficulties and problems in this regard, the China Association of Foreign Trade and Economic Cooperation Enterprises carried 展开更多
关键词 this An investigation and analysis of the export earnings of 100 foreign trade enterprises in the first five months of this year
下载PDF
Ten Years of Development in Pudong- A Microcosm of China's Economic Miracle 被引量:2
14
作者 Rui Bo 《China Today》 2000年第4期6-8,共3页
关键词 A Microcosm of China’s Economic Miracle Ten years of development in Pudong
下载PDF
Integrating Climate Change Factors into Environmental Planning Innovation of the National 12^(th) Five Year Development Plan towards Climate Change in China
15
作者 Yang Xiao Li Yangfan Yin Rongyao Sun Xiang Zhu Xiaodong 《Chinese Journal of Population,Resources and Environment》 2011年第4期42-48,共7页
Effects on sustainable development of climate change have been going further nowadays.National Five Year Development Plan in China should have specific policies on how to take climate change impacts into account throu... Effects on sustainable development of climate change have been going further nowadays.National Five Year Development Plan in China should have specific policies on how to take climate change impacts into account through the environmental planning.Key fields distribute in three levels of natural bearing capacity,production system and human settlements,and include seven aspects:ecosystems,water resources,disasters and risks,low-carbon economy,vulnerable departments,urbanization,and coastland. 展开更多
关键词 climate change environmental planning innovation the 12th Five Year development Plan
下载PDF
Does overshoot in leaf development of ponderosa pine in wet years leads to bark beetle outbreaks on fine-textured soils in drier years?
16
作者 Wendy Peterman Richard H Waring 《Forest Ecosystems》 SCIE CAS 2014年第4期214-226,共13页
Background: Frequent outbreaks of insects and diseases have been recorded in the native forests of western North America during the last few decades, but the distribution of these outbreaks has been far from uniform.... Background: Frequent outbreaks of insects and diseases have been recorded in the native forests of western North America during the last few decades, but the distribution of these outbreaks has been far from uniform. In some cases, recent climatic variations may explain some of this spatial variation along with the presence of expansive forests composed of dense, older trees. Forest managers and policy makers would benefit if areas especially prone to disturbance could be recognized so that mitigating actions could be taken. Methods: We use two ponderosa pine-dominated sites in western Montana, U.S.A. to apply a modeling approach that couples information acquired via remote sensing, soil surveys, and local weather stations to assess where bark beetle outbreaks might first occur and why. Although there was a general downward trend in precipitation for both sites over the period between 1998 and 2010 (slope =-1.3, R2 = 0.08), interannual variability was high. Some years showed large increases followed by sharp decreases. Both sites had similar topography and fire histories, but bark beetle activity occurred earlier (circa 2000 to 2001) and more severely on one site than on the other. The initial canopy density of the two sites was also similar, with leaf area indices ranging between 1.7-2.0 m2. m-2. We wondered if the difference in bark beetle activity was related to soils that were higher in clay content at site I than at site II. To assess this possibility, we applied a process-based stand growth model (3-PG) to analyze the data and evaluate the hypotheses. Results: We found that when wet years were followed by drier years, the simulated annual wood production per unit of leaf area, a measure of tree vigor, dropped below a critical threshold on site I but not on site II. Conclusion: We concluded that the difference in vulnerability of the two stands to beetle outbreaks can be explained largely by differences in gross photosynthesis attributed to the fact that an equivalent amount of stored water in the rooting zone (100 mm) is extracted less efficiently from fine-textured soils than from coarse-textured ones. 展开更多
关键词 Does overshoot in leaf development of ponderosa pine in wet years leads to bark beetle outbreaks on fine-textured soils in drier years soil
下载PDF
Responsibility of States in implementing the Green Model rather than the Traditional Model of Development
17
作者 Natasa Maric 《学术界》 CSSCI 北大核心 2017年第3期266-274,共9页
Green Development strategy is officially no longer a pending question in China's development process however the transition from the Traditional Model to the implementation of Green Model Development is slow and p... Green Development strategy is officially no longer a pending question in China's development process however the transition from the Traditional Model to the implementation of Green Model Development is slow and presents a challenge to State's Responsibility in managing ways of life. We seek to analyze: "Why visible changes come slow despite a firm policy?"Short-term and long-term Green Development strategies of implementation are difficult to coordinate and may cause a crumbling transition. It is in State's responsibility to ensure"slow but steady"transition,with a low risk of collateral damage and a transition compatible with inequalities that still exist between rural and urban areas. Green Development Model implementation has three major features,sustainable development,state responsibility and time. 展开更多
关键词 责任 传统 绿色发展战略 可持续发展 管理能力 生活方式 心理状态 COM
下载PDF
Development for China's Auto Industry in Recent Years
18
作者 Che Wen 《China's Foreign Trade》 1997年第3期30-30,共1页
China’s auto industry has gradually been transformed from the original extensive operation, to readjustment and steady growth since 1993. It has begun to concentrate on the development of new leading brands and the d... China’s auto industry has gradually been transformed from the original extensive operation, to readjustment and steady growth since 1993. It has begun to concentrate on the development of new leading brands and the diversification of its automobiles, with multi-grades and functions. The steady increase in output of automobiles is a significant feature in China’s auto industry in recent years. In the 1980s, the industry developed rapidly, with fluctuations at times. 展开更多
关键词 AUTO development for China’s Auto Industry in Recent years
下载PDF
Years of Concentrated Work Leads to Successive Glory——Ye Weimin,Vice President of ZTE,Talks About ZTE's Development Strategy on WCDMA
19
作者 Zhong Xing (ZTE Corporation,Shenzhen 518057,China) 《ZTE Communications》 2003年第2期50-51,共2页
Editor’s Note:After becoming theleading force in CDMAequipment manufacturingin China, ZTE rolled outits self-developed WCD-MA products that at-tracted much expert at-tention in the MTNETsecond phase single sys- tem t... Editor’s Note:After becoming theleading force in CDMAequipment manufacturingin China, ZTE rolled outits self-developed WCD-MA products that at-tracted much expert at-tention in the MTNETsecond phase single sys- tem testing completed inJune 2003. Thefollowing are the remarks of Ye Weimin,ZTE’s vice president, on ZTE’s strate-gies, advantages and achievements inthe development of WCDMA products. 展开更多
关键词 Ye Weimin Vice President of ZTE Talks About ZTE’s development Strategy on WCDMA net years of Concentrated Work Leads to Successive Glory ZTE of WORK on
下载PDF
Highlights of Fifty Years Development of China's Power Industry
20
《Electricity》 1999年第3期5-15,共11页
关键词 In Highlights of Fifty years development of China’s Power Industry
下载PDF
上一页 1 2 130 下一页 到第
使用帮助 返回顶部